CA2097095A1 - Methode de normalisation de symboles manuscrits - Google Patents

Methode de normalisation de symboles manuscrits

Info

Publication number
CA2097095A1
CA2097095A1 CA002097095A CA2097095A CA2097095A1 CA 2097095 A1 CA2097095 A1 CA 2097095A1 CA 002097095 A CA002097095 A CA 002097095A CA 2097095 A CA2097095 A CA 2097095A CA 2097095 A1 CA2097095 A1 CA 2097095A1
Authority
CA
Canada
Prior art keywords
symbol
samples
signature
model
ordered set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002097095A
Other languages
English (en)
Inventor
Frank William Sinden
Gordon Thomas Wilfong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Publication of CA2097095A1 publication Critical patent/CA2097095A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/30—Writer recognition; Reading and verifying signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/16—Image preprocessing
    • G06V30/166—Normalisation of pattern dimensions
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Human Computer Interaction (AREA)
  • Character Discrimination (AREA)
  • Character Input (AREA)
CA002097095A 1992-07-29 1993-05-27 Methode de normalisation de symboles manuscrits Abandoned CA2097095A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92258392A 1992-07-29 1992-07-29
US922,583 1992-07-29

Publications (1)

Publication Number Publication Date
CA2097095A1 true CA2097095A1 (fr) 1994-01-30

Family

ID=25447260

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002097095A Abandoned CA2097095A1 (fr) 1992-07-29 1993-05-27 Methode de normalisation de symboles manuscrits

Country Status (4)

Country Link
US (1) US5537489A (fr)
EP (1) EP0581529A3 (fr)
JP (1) JPH06208653A (fr)
CA (1) CA2097095A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1674795A (en) 1993-12-17 1995-07-03 Quintet, Incorporated Method of automated signature verification
JP3727971B2 (ja) * 1995-02-01 2005-12-21 キヤノン株式会社 文書処理装置、及び文書処理方法
JPH08249422A (ja) * 1995-03-08 1996-09-27 Canon Inc 文字処理装置及び方法
US5745592A (en) * 1995-07-27 1998-04-28 Lucent Technologies Inc. Method for detecting forgery in a traced signature by measuring an amount of jitter
US6317762B1 (en) * 1995-11-22 2001-11-13 Fujitsu Limited Document creating apparatus creates free format document from handwritten data converting into normalized size
JP3216983B2 (ja) * 1996-02-27 2001-10-09 インターナショナル・ビジネス・マシーンズ・コーポレーション 文字認識装置および文字認識方法
US5956409A (en) 1996-04-29 1999-09-21 Quintet, Inc. Secure application of seals
US5825923A (en) * 1996-09-05 1998-10-20 Faxtrieve, Inc. Method for performing character recognition on a pixel matrix
US6216175B1 (en) 1998-06-08 2001-04-10 Microsoft Corporation Method for upgrading copies of an original file with same update data after normalizing differences between copies created during respective original installations
SE514377C2 (sv) * 1998-08-26 2001-02-19 Gunnar Sparr Teckenigenkänning
US6466999B1 (en) 1999-03-31 2002-10-15 Microsoft Corporation Preprocessing a reference data stream for patch generation and compression
US7006711B2 (en) * 2000-06-21 2006-02-28 Microsoft Corporation Transform table for ink sizing and compression
US6912308B2 (en) * 2000-12-01 2005-06-28 Targus Communications Corp. Apparatus and method for automatic form recognition and pagination
US7343053B2 (en) * 2001-06-27 2008-03-11 Microsoft Corporation Transform table for ink sizing and compression
US6721452B2 (en) 2001-09-12 2004-04-13 Auburn University System and method of handwritten character recognition
US7010165B2 (en) * 2002-05-10 2006-03-07 Microsoft Corporation Preprocessing of multi-line rotated electronic ink
JP2010273358A (ja) * 2005-10-25 2010-12-02 Kyocera Corp 暗証番号等を入力する為の入力装置及びその入力装置を備えた携帯電話装置
CA2526633A1 (fr) * 2005-11-10 2007-05-10 Imaginet Software Transmission de protocole d'ecriture ordinaire sur sms
US8406532B2 (en) * 2009-06-17 2013-03-26 Chevron U.S.A., Inc. Image matching using line signature
DE102010044192A1 (de) 2009-11-20 2011-05-26 Riggenbach, Paul, Dr. Verfahren zur Erfassung von graphischen Symbolen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614736A (en) * 1968-05-21 1971-10-19 Ibm Pattern recognition apparatus and methods invariant to translation, scale change and rotation
US3636513A (en) * 1969-10-17 1972-01-18 Westinghouse Electric Corp Preprocessing method and apparatus for pattern recognition
US4155072A (en) * 1976-12-17 1979-05-15 Ricoh Company, Ltd. Character recognition apparatus
JPS5580183A (en) * 1978-12-12 1980-06-17 Nippon Telegr & Teleph Corp <Ntt> On-line recognition processing system of hand-written character
US4759075A (en) * 1983-03-14 1988-07-19 Ana Tech Corporation Method and apparatus for vectorizing documents and symbol recognition
US4646351A (en) * 1985-10-04 1987-02-24 Visa International Service Association Method and apparatus for dynamic signature verification
US5077811A (en) * 1990-10-10 1991-12-31 Fuji Xerox Co., Ltd. Character and picture image data processing system
US5325447A (en) * 1991-10-02 1994-06-28 Environmental Research Institute Of Michigan Handwritten digit normalization method
US5287415A (en) * 1991-10-24 1994-02-15 International Business Machines Corporation Elastic prototype averaging in online handwriting recognition

Also Published As

Publication number Publication date
EP0581529A2 (fr) 1994-02-02
JPH06208653A (ja) 1994-07-26
EP0581529A3 (en) 1994-07-20
US5537489A (en) 1996-07-16

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued